Results 51 to 60 of about 5,157,794 (358)

Giant solid-state barocaloric effect in the Ni-Mn-In magnetic shape-memory alloy.

Nature Materials, 2010
The search for materials showing large caloric effects close to room temperature has become a challenge in modern materials physics and it is expected that such a class of materials will provide a way to renew present cooling devices that are based on ...
L. Mañosa, D. González-Alonso, A. Planes, E. Bonnot, M. Barrio, J. Tamarit, S. Aksoy, M. Acet   +7 more
semanticscholar   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

A three‐dimensional phenomenological model for Magnetic Shape Memory Alloys

GAMM-Mitteilungen, 2011
AbstractWe present a three‐dimensional thermodynamically‐consistent phenomenological model for the magneto‐mechanical behavior of magnetic shape memory materials featuring a cubic‐totetragonal martensitic transformation. Existence of energetic solutions for both the constitutive relation problem and the three‐dimensional quasi‐static evolution problem ...
F Auricchio, AL Bessoud, A Reali, U Stefanelli   +3 more
openaire   +4 more sources

Observation of phasons in the magnetic shape memory alloy Ni ₂ MnGa [PDF]

Europhysics Letters (EPL), 2007
An inelastic neutron scattering study of the lattice dynamics of the martensite phase of the ferromagnetic shape memory alloy, Ni2MnGa, reveals the presence of well-defined phasons associated with the charge density wave (CDW) resulting from Fermi surface (FS) nesting.
Shapiro, SM, Vorderwisch, P, Habicht, K, Hradil, K, Schneider, H   +4 more
openaire   +4 more sources

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Magnetic anisotropy and the shape memory phase transition in Ni52Mn26Ga22

, 2004
Torque measurements of magnetocrystalline anisotropy energies, made on (1 0 0) and (1 1 0) oriented planar disc samples of the shape memory alloy Ni52Mn26Ga22 as a function of temperature and applied directional field cooling are reported.
Cugat, O, Faunce, CA, Donnier-Valentin, G, Grundy, PJ, Lord, DG, Lord, JS, Robertson, S, Mellors, NJ   +7 more
core   +1 more source

Transformation Temperatures, Shape Memory and Magnetic Properties of Hafnium Modified Ti-Ta Based High Temperature Shape Memory Alloys

High Temperature Materials and Processes, 2017
In this study the modification effect of Hf content on the shape memory properties and magnetic permeability of a 75.5-77Ti-20Ta-3-4.5Hf alloy system has been systematically studied by DSC, three-point bend test, vector network analyzer and XRD.
Khan W.Q., Wang Q., Jin X.
doaj   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

ANALYSIS OF MAGNETORHEOLOGICAL FLUID BRAKE CONTROLLED BY SHAPE MEMORY ALLOY

Jixie qiangdu, 2016
This paper aims to propose a cylindrical magnetorheological fluid brake controlled by shape memory alloy,based on the shape memory effect of shape memory alloy under thermal effect and the rheological behavior of magnetorheological fluid.The shape memory
ZHAO BaiSen, FU Tian, MA Rui
doaj  

Localization versus delocalization of d-states within the $$\hbox {Ni}_{{2}}$$ Ni 2 MnGa Heusler alloy

Scientific Reports, 2022
We present calculations based on density-functional theory with improved exchange-correlation approaches to investigate the electronic structure of $$\hbox {Ni}_2$$ Ni 2 MnGa magnetic shape memory alloy prototype.
Jozef Janovec, Martin Zelený, Oleg Heczko, Andrés Ayuela   +3 more
doaj   +1 more source